Aquarium inputs
Aquarium running-cost calculator
Estimate monthly electricity use for one piece of equipment.
What it calculates
Formula
Watts × hours per day × 30 ÷ 1,000 × price per kWh.
Limits
Thermostatic equipment does not draw its full rating for every connected hour.
Next step
Measure a heater over several representative days and use its actual average duty cycle.